Circuit tester



FIG. 1 is a plane view of a circuit tester showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view of thereof

FIG. 4 is a bottom plane view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a plane view, in which the testing rod is separated from the main body section; and,

FIG. 8 is a perspective elevational view thereof. 

The ornamental design for a circuit tester, as shown and described. 